Sachchidananda Hirananda Vatsyayan (7 March 1911 – 4 April 1987), popularly known by his pen name Agyeya (also transliterated Ajneya, meaning 'the unknowable'), was an Indian writer, poet, novelist, literary critic, journalist, translator and revolutionary in Hindi language. He pioneered modern trends in Hindi poetry, as well as in fiction, criticism and journalism. He is regarded as the pioneer of the Prayogavaad
